A box contains 5 white and 7 black balls. Two successive drawn of 3 balls are made with replacement (ii) without replacement. The probability that the first draw woul produce white balls and the second draw would produce black balls are respectively (a) 6/321 and 3/926 (b) 1/20 and 1/30 (c) 35/144 and 35/10 (d) 7/968 and 5/264
